Sanitary fixture in the form of a toilet

Abstract

A sanitary facility formed as a toilet, including a body with an upwardly open bowl, a water chamber provided in the region of the upper rim of the bowl, to project horizontally into the bowl. Wherein at least one flushing opening on the chamber side directed downwardly into the bowl. At least one connection portion is provided in the rear region of the body for connecting a flushing-water feed line for feeding flushing water into the water chamber, from which the water flows into the bowl via the chamber-side flushing opening. The water chamber extends only in a rear rim region. A second and a third flushing opening are each able to be supplied with flushing water and allow the flushing water to be introduced tangentially into the bowl. The third flushing opening is positioned closer to the front side of the body than the second flushing opening.

Claims

1. A sanitary facility in the form of a toilet, comprising a body with an upwardly open bowl region, a water chamber provided in the region of an upper rim of the bowl region, said water chamber projecting into the bowl region as seen horizontally, wherein at least one flushing opening directed downwardly into the bowl region is provided on the chamber side, and at least one connection portion, provided in the rear region of the body, for connecting a flushing-water feed line for feeding flushing water into the water chamber, from which the flushing water flows into the bowl region via the at least one chamber-side flushing opening, wherein the water chamber extends only in a rear rim region, and wherein a second and a third flushing opening that are each able to be supplied with flushing water and each allow the flushing water to be introduced horizontally and tangentially into the bowl region are provided, wherein the third flushing opening is positioned closer to the front side of the body than the second flushing opening.

2. The sanitary facility according to claim 1, wherein the second and the third flushing opening are fed with flushing water jointly from the water chamber.

3. The sanitary facility according to claim 1, wherein the second and the third flushing opening lead out in a common water guiding portion that extends at least partially around the bowl region, is laterally open toward the bowl region and is formed on the body.

4. The sanitary facility according to claim 3, wherein the water guiding portion extends through at least 180° as far as the opposite side of the bowl region.

5. The sanitary facility according to claim 4, wherein the water guiding portion extends as far as the other side of the water chamber or under the water chamber.

6. The sanitary facility according to claim 1, wherein the second flushing opening is provided on the chamber side in addition to the first flushing opening, and in that the water chamber communicates with a channel that leads out at the third flushing opening.

7. The sanitary facility according to claim 6, wherein the channel is closed on all sides.

8. The sanitary facility according to claim 6, wherein the channel extends laterally next to and farther toward the outside than the water guiding portion.

9. The sanitary facility according to claim 6, wherein the channel extends above or beneath the water guiding portion.

10. The sanitary facility according to claim 6, wherein the cross section of the channel decreases at least partially toward the third flushing opening.

11. The sanitary facility according to claim 6, wherein a wall bounding the channel simultaneously forms a boundary for the water guiding portion.

12. The sanitary facility according to claim 6, wherein the second flushing opening is arranged next to an outlet opening of the water chamber, which is adjoined by the channel.

13. The sanitary facility according to claim 1, wherein a fourth flushing opening is provided, which is downstream of the third flushing opening as seen in the direction of the flushing water fed to the third flushing opening and which is either fed with flushing water from the channel or at which a separate channel that communicates with the water chamber opens out.

14. The sanitary facility according to claim 6, wherein the connection portion is provided centrally with regard to a vertical longitudinal center plane of the body, and the water chamber extends on one or both sides of the longitudinal center plane.

15. The sanitary facility according to claim 14, wherein the second flushing opening is provided on one side of the centrally arranged water chamber and the channel adjoins.

16. The sanitary facility according to claim 6, wherein the water guiding portion is bounded on its top side by a protrusion directed toward the inside of the bowl region and on its underside via a bowl-side shoulder.

17. The sanitary facility according to claim 16, wherein the protrusion is formed via the rim, extended toward the inside of the bowl region, of the bowl region.

18. The sanitary facility according to claim 17, wherein the rim, extended toward the inside, of the bowl region simultaneously forms the cover of the channel.

19. The sanitary facility according to claim 1, wherein the horizontal depth of the water guiding portion decreases toward the end.

20. The sanitary facility according to claim 1, wherein a plurality of first flushing openings are provided, which are arranged preferably in an arcuate row.

Description

BRIEF DESCRIPTION OF THE DRAWING

(1) In the drawing:

(2) FIG. 1 shows a schematic illustration, in horizontal section, of a sanitary facility according to the invention in the form of a toilet,

(3) FIG. 2 shows a vertical section through the toilet in FIG. 1,

(4) FIG. 3 shows a perspective top view of a toilet according to the invention,

(5) FIG. 4 shows a perspective side view of the toilet in FIG. 3, and

(6) FIG. 5 shows a schematic illustration, corresponding to FIG. 1, for elucidating the flow of flushing water.

DETAILED DESCRIPTION OF THE INVENTION

(7) FIGS. 1 and 2 show a sanitary facility 1 according to the invention in the form of a toilet in a horizontal section (FIG. 1) and a vertical section (FIG. 2). The sanitary facility 1 consists of a body 2 having a bowl region 3, comprising a rear region 4, a front region 5 and mutually opposite lateral regions 6, 7. The bowl region 3 leads out at a drain 8 in the underside, which (see FIG. 3) leads out in a waste pipe 9 to which a sewage pipe can be connected. The toilet itself can be floor-mounted or, as here, be embodied as a wall-mounted toilet.

(8) Provided is a water chamber 10, which has a rear connection portion 11 with a feed opening 12, via which flushing water, which is fed by a flushing-water feed line, which is intended to be connected to the connection portion 11, can flow into the water chamber 10. The flushing-water feed line comes from a water tank or cistern, which is mounted in a manner known per se above the toilet, usually behind a wall.

(9) The water chamber extends exclusively in the rear region 4 of the bowl region 3 and projects (see FIG. 2) to some extent into the bowl region 3. In the region of this protrusion, a plurality of first flushing openings 13 are provided in the exemplary embodiment shown, which (see FIG. 2) are open vertically downwardly, such that flushing water located in the water chamber 10 can flow vertically downward into the region 4 and clean the latter.

(10) The water chamber 10 is arranged centrally with respect to the longitudinal center plane 14, such that a central supply connection is made via the feed opening 12. The water chamber 10 extends to the left-hand side, as seen from the front, in the sectional top view according to FIG. 1. It would be conceivable, as indicated by the dashed line 25, for it also to extend somewhat to the opposite side and for further first flushing openings 13 to be able to be provided in this region.

(11) Provided in the region of the left-hand end of the water chamber is a second flushing opening 15, which is more or less vertical and is open toward the front. It allows tornado flushing, since water emerging from the water chamber 10 via the second flushing opening 15 is introduced horizontally and tangentially into the bowl region 3. The flushing water emerging here passes into a water guiding portion 16, which (see also FIG. 2) extends, starting at the end of the water chamber, around the circumference of the bowl region 3 in the upper region of the bowl rim 17 and runs as far as the opposite end of the water chamber 10, optionally also to some extent beneath the latter. The water guiding portion 16 is formed via for example a horizontally protruding shoulder, which provides a water running surface along which the water flows. Over the top side of the water guiding portion 16 there engages an inwardly extended protruding rim 17, which bounds the water guiding portion 16 upwardly and serves as a splash guard. Downwardly, the water guiding portion 16 is bounded via a protruding shoulder 18, which likewise extends round. Although, in the exemplary embodiment shown, the water guiding portion 16 extends all the way round, it is likewise conceivable to also configure it to extend round to a lesser extent, such that the shoulder 18 narrows toward the channel end and tapers out in the surface of the bowl. This water guiding portion 16 serves, since it extends close to the rim at the upper bowl rim, to guide the water flowing into it at an appropriate height for as long as possible. The water flows out of the second flushing opening 15 with the flushing pressure defined via the water column in the water tank or cistern. Although a part already flows down to the side into the bowl region 3 or the lateral region 6 after flushing out, a considerable part is transported further in the circumferential direction, wherein water continuously flows downward, of course, throughout the transport. However, in any case, the water running surface formed via the shoulder 18 makes it possible to guide the flushing water as far as possible in the circumferential direction, such that a relatively large area of the bowl region 3 can already be flushed via the water emerging from the second flushing opening 15.

(12) As FIG. 1 shows, provided next to the second flushing opening 15 and laterally farther out than the latter is an outlet opening 19, which leads into a channel 20. This channel 20 extends parallel to the water guiding portion 16 and is separated therefrom via a partition wall 21, which bounds the water guiding portion 16. The channel 20 is likewise engaged over by the bowl rim 17, and the latter forms as it were the upper channel cover. The partition wall 21 can adjoin this protruding rim 17 such that the channel 20 is closed on all sides, but it can also be spaced apart therefrom. In any case, however, the bowl rim 17 also extends somewhat farther and engages over that part of the water guiding portion 16 that is next to the channel 20.

(13) The channel 20 leads out at a third flushing opening 22, which is evidently, as seen in the circumferential or flushing-water feed direction, clearly offset from the second flushing opening 15. While the second flushing opening 15 is located at the transition from the rear region 4 to the lateral region 6, the third flushing opening 22 is positioned already in the front region 5. Since the third flushing opening 22 communicates with the water chamber 10 via the channel 20 and the outlet opening 19, the flushing water is consequently likewise present in the channel 20, and thus the third flushing opening 22, with the corresponding pressure defined via the water level in the water tank or cistern, and is flushed out there likewise horizontally and tangentially to the bowl surface and introduced into the water guiding portion 16. In other words, both flushing openings 15 and 22 introduce the flushing water into the water guiding portion 16, which is open toward the bowl region 3, but at positions that are clearly spaced apart with respect to the longitudinal center plane 14.

(14) The flushing water fed via the third flushing opening 22 is guided a long way around via the water guiding portion 16, although, of course, a certain part thereof continuously flows downward via the flushing path and cleans the bowl surface. However, by being guided around, a sufficient amount of water also passes into the region 7 and further and can flow away and provide cleaning there.

(15) In other words, in the case of the toilet according to the invention, via the one flushing-water inflow via the connection opening 12 and the common water chamber 10, both the first flushing openings 13 and the second and third flushing openings 15, 22 are supplied with flushing water. Combined flushing from different flushing techniques thus takes place, specifically conventional flushing from the downwardly directed flushing openings 13 and tornado flushing via the flushing openings 15 and 22, with these being initiated at two different points, however. As described, it is a matter of gravity flushing, in which the flushing water is fed from the water tank or cistern only under relatively low pressure. Since the tornado flushing is initiated at two clearly offset positions, as seen more or less in the axial or in the longitudinal direction of the bowl region 3, via the second and third flushing openings 15, 22, it is possible to ensure that, in spite of a lower water pressure, the flushing water flushes out the basin region 3 all around, in particular including in the region 7 that is farthest away from the second and third flushing openings 15 and 22. This flushing that combines different flushing techniques ensures that the flushing water not only flows away with a sufficiently strong vertical component resulting from the amount of flushing water, which flows away via the first flushing openings 13, so as to clean the rear region 4 but also so as to submerge objects to be flushed away. Furthermore, a powerful and extensive flushing out of the bowl region 3 is ensured via the tornado flushing that is initiated as it were twice, and at the same time, in this way, the quantity of water required to complete flush away the objects is also fed.

(16) FIGS. 3 and 4 show two perspective views of the sanitary facility 1, or toilet, with its body 2 in a top view (FIG. 3) and a perspective side view (FIG. 4). FIG. 3 shows the second flushing opening 15 and part of the water guiding portion 16 adjoining the latter, which can also be seen on the opposite side. As can be seen, the water guiding portion 16 is engaged over via the inwardly extending bowl rim 17.

(17) By contrast, FIG. 4, which likewise shows the water guiding portion 16, reveals the third flushing opening 22, which likewise leads out in the water guiding portion 16. The two flushing openings 15, 22 are illustrated as elongate, slot-like flushing openings. Via the opening geometry, a certain increase in the dynamic pressure can be achieved, likewise by the circumstance that the channel 20 can also narrow somewhat in cross section toward the front end having the third flushing opening 22.

(18) FIG. 5 shows the sanitary facility 1, or the toilet, during a flushing operation. The water chamber 10 is filled with flushing water 23, which has flowed in via the flushing-water feed line (indicated only by way of dashed lines here). From the first flushing openings 13, the flushing water flows, as illustrated by the arrows P1, vertically downward along the rear region 4 and reaches the drain 8.

(19) At the same time, however, the flushing water flows from the second flushing opening 15 tangentially into the water guiding portion 16 and flows there, guided via the water guiding portion 16, along or, as also illustrated by the arrows P2, down into the bowl region 3.

(20) Likewise at the same time, the flushing water flows via the outlet opening 19 into the channel 20 and from the third flushing opening 22 likewise into the water guiding portion 16 and along the latter, and also, as illustrated via the arrows P3, down into the bowl region 3.

(21) As can be seen, on account of this guided tornado flush, the flushing water is successfully guided to all regions of the bowl that need to be cleaned, and flushing also takes place in the rear region 4 via the downwardly flowing flushing water.

(22) The position of the third flushing opening 22 is of course variable; it can be arranged somewhat closer to the second flushing opening 15 or farther away from the latter. It is also conceivable to provide a fourth flushing opening, i.e. to open the channel 20 in the region of the third flushing opening 22 but also to continue it and guide it to a fourth flushing opening, provided for example in the region 7, such that flushing water can additionally be output there too. Equally, it is also conceivable, via an additional channel that proceeds from the other side of the water chamber 10, to guide water to a fourth flushing opening, wherein the flushing-out opening would then be in the opposite direction to that of the flushing openings 15 and 22.

(23) Although, in the exemplary embodiment shown, the water guiding portion 16 and the channel 20 are arranged next to one another, as seen horizontally, it is also conceivable to position the water guiding portion 16 beneath the channel 20 or to position the channel 20 beneath the water guiding portion 16, and this would result in a correspondingly different arrangement of the second flushing opening 15 and of the outlet opening 19.

(24) While specific embodiments of the invention have been shown and described in detail to illustrate the inventive principles, it will be understood that the invention may be embodied otherwise without departing from such principles.